Title:
【発明の名称】圧力表示型のタイヤ膨張バルブ
Document Type and Number:
Japanese Patent JPH09503848
Kind Code:
A
Abstract:
A tire inflation valve stem comprises a stationary, radially outer stem part (3); a movable, radially inner stem part (4) slidable axially within the outer part; a compression reaction spring (20) extending between the core parts; and a flexible barrier (23) extending from one core part to the other to prevent air leakage between the parts. The flexible barrier comprises a thin walled, soft elastomeric tube sealed at its ends to the respective core parts and with an intermediate part curved back on itself in a free rolling manner within a variable length annular space between an external cylindrical surface (19) of the movable core part and an internal cylindrical surface (12) of the stationary part.
Inventors:
Lukins warwick edward
Application Number:
JP51107495A
Publication Date:
April 15, 1997
Filing Date:
August 23, 1994
Export Citation:
Assignee:
J.C. Ludowich and Sun Limited
International Classes:
B60C23/00; B60C23/02; B60C23/04; G01L17/00; F16K15/20; F16K27/08; (IPC1-7): F16K15/20; B60C23/04; G01L17/00
Attorney, Agent or Firm:
Hideyoshi Takara